Recreating cookies with per-request values isn't documented

[nwellnhof]

It's possible to recreate cookies with per-request values by setting change_id and one of the following keys in $env->{'psgix.session.options'}:

• path
• domain
• expires
• secure
• httponly

This is useful to implement things like a "Remember me" option, for example, so I think it should be documented.

[poletaev-nn]

+1, in the documentation is now described only global mechanism for setting values, and it is very difficult to find a solution to implement "Remember me" in application.

[miyagawa]

If I understand it right, features like "Remember Me" should be implemented on top of Plack::Middleware::Session in the frameworks, rather than end users (app developers) mess with the $env variables.